Skip to content
English
The WorkbenchTools that upload nothing
A workshop by the ODERSA associationNothing leaves, nothing is kept, nothing reaches us.

The workshop · The security corner

The security corner

Make a QR code

Almost every free QR code generator builds a redirect link that goes through THEIR server: they count every scan, and the code dies if the service shuts down. This one writes your data INTO the code, here, sending nothing, and shows you the codewords it computed.

Pasted text

A web address, some text, contact details. Nothing is sent: the code is computed here, on your device, and its contents are written INTO the code, without going through a server.
Ctrl + Enter also runs the tool.

Your text never leaves your device

This tool works entirely inside your browser. What you type or paste here is sent nowhere, and nothing is kept once the tab is closed.

Checkable in ten seconds, without taking our word for it:

  1. Open your browser's inspector: the F12 key (or Ctrl+Shift+I, or Cmd+Option+I on a Mac).
  2. Go to the “Network” tab, then clear the list.
  3. Type or paste some text on this page and run the tool. The list stays empty: no request goes out.
  4. To go further: cut your connection and do it again. The tool still works.

This absence of requests is also checked BY MACHINE before every release: a lock drives a real browser, processes a real file, and refuses to publish if a single byte goes out.

The proof page, step by step and in pictures

Going further

InstructionsHow it works

The tool starts from text: a web address, a message, contact details, a configuration line. It returns a PNG image or an SVG file. Reading a QR code is NOT offered: see the limits just below.

VerifyThe proof, step by step

The network inspector check, explained one gesture at a time, with screenshots.

The cornerThe security corner

The other tools in this corner of the workshop.

UnderstandHow this is built

The formats actually handled, browser by browser, and what we ruled out.